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68 lines
2.3 KiB
Python
68 lines
2.3 KiB
Python
from __future__ import unicode_literals
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import os
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import sys
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from django.conf import settings
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from django.core.management import call_command
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from django.db.models.loading import cache, load_app
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from django.test import TestCase, TransactionTestCase
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from django.test.utils import override_settings
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from django.utils._os import upath
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from .models import (ConcreteModel, ConcreteModelSubclass,
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ConcreteModelSubclassProxy)
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@override_settings(INSTALLED_APPS=('app1', 'app2'))
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class ProxyModelInheritanceTests(TransactionTestCase):
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"""
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Proxy model inheritance across apps can result in migrate not creating the table
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for the proxied model (as described in #12286). This test creates two dummy
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apps and calls migrate, then verifies that the table has been created.
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"""
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available_apps = []
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def setUp(self):
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self.old_sys_path = sys.path[:]
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sys.path.append(os.path.dirname(os.path.abspath(upath(__file__))))
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for app in settings.INSTALLED_APPS:
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load_app(app)
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def tearDown(self):
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sys.path = self.old_sys_path
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del cache.app_store[cache.app_labels['app1']]
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del cache.app_store[cache.app_labels['app2']]
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del cache.app_labels['app1']
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del cache.app_labels['app2']
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del cache.app_models['app1']
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del cache.app_models['app2']
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def test_table_exists(self):
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try:
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cache.set_available_apps(settings.INSTALLED_APPS)
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call_command('migrate', verbosity=0)
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finally:
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cache.unset_available_apps()
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from .app1.models import ProxyModel
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from .app2.models import NiceModel
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self.assertEqual(NiceModel.objects.all().count(), 0)
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self.assertEqual(ProxyModel.objects.all().count(), 0)
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class MultiTableInheritanceProxyTest(TestCase):
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def test_model_subclass_proxy(self):
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"""
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Deleting an instance of a model proxying a multi-table inherited
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subclass should cascade delete down the whole inheritance chain (see
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#18083).
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"""
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instance = ConcreteModelSubclassProxy.objects.create()
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instance.delete()
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self.assertEqual(0, ConcreteModelSubclassProxy.objects.count())
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self.assertEqual(0, ConcreteModelSubclass.objects.count())
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self.assertEqual(0, ConcreteModel.objects.count())
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